Last week at World of Concrete, Caterpillar unveiled its next-generation D-Series telescopic handlers. Redesigned from the ground up, the Cat TL1055D and TL1255D feature Tier 4 Final engines, updated cab options, improved visibility, and an expanded range of attachments.
On the show floor was the 10,000-lb. capacity TL1055D—a high-mounted boom model with a 55-ft. lift height. Its 12,000-lb. sister machine, the TL1255D, that rolled out at the same time also has a 55-ft. lift height. Both machines have a forward reach of about 41 ft. The four-stage boom on both models features the lift cylinder on the top of the boom rather than underneath or on the side. Overall operating weight on the TL1055D is 32,000 lbs., which Cat notes is a weight reduction from the C-Series predecessor. For transport, the TL1055D measures 251 in. long by 101 in. wide (standard tires) by 100 in. tall with base cab. The wheelbase is 138 in., and ground clearance is 18 in. Turning radius over tires is 169 in.
Bringing the machine up to current EPA emission requirements, Caterpillar is using a 142-hp Cat C4.4 ACERT engine with emissions control systems in both models. The benefit of this engine design is the emission controls do not require the operator to intervene, and it does not disrupt work cycles. The telehandlers also use feature a fou-forward/three-reverse power-shift transmission and trunnion-mounted planetary axles that allow large steering angles and inboard wet-disc brakes. A variable-displacement, load-sensing piston pump provides full hydraulic power at all engine speeds.
The redesigned operator’s cab can be configured as an open or enclosed ROPs design. To run the machine, a single electro-hydraulic joystick allows three simultaneous boom functions, provides an integral transmission-disengage switch, and enables fully proportional control of auxiliary hydraulics. Three steering modes—two-wheel, four-wheel, and crab—are selected via a single switch and can be changed when the machine is moving. Boom float and ride control are also available in the TL Series models.
Also in the cab, the new dash design makes it easier for the operator to read, and it can be equipped with an optional programmable display with electronic load chart, diagnostics, and operator preferences. For enhanced safety, sight lines to the right side of the machine have been improved. A rear-view camera and proximity alarm system are also optional equipment for the telehandlers.
The TL1055D and TL1255D have been fitted with a standard Integrated Tool Carrier quick coupler for using attachments like buckets, different carriages, lift hooks, truss booms, and material-handling tools. Hydraulic actuation is available. The standard auxiliary hydraulic hoses providing 25.1 gpm of flow and 3,770 psi of pressure.
On the service side, routine maintenance points are accessible from the ground.
Cat’s Product Link Ready is also available to assist Cat dealers with installing the Cat telematics system.
Note that a preliminary reach chart was not available at World of Concrete, so look for information on capacity at maximum reach and maximum lift in the future. Cat also plans to update its smaller machines sometime soon. Lift and Access will report its findings when they are available.
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